PowerEdge: Correlating Network Devices in SLI Support Live Image to Physical Devices.

Option 1:  Use the ip command

Example 1:  Use the command: ip addr or ip a to list the network devices.

Some devices can be identified through the common nomenclature Linux uses. We can use IP command to list them.
Example:

# ip addr 
# ip a

Lan-On-Motherboard interfaces: em<port number>

Example: em1, em2 would be Embedded ports 1 and 2 on the motherboard.

PCI add-in interfaces: p<slot number>p<port number>_<virtual function instance>

Example: p3p1, p3p2 would be a NIC in Slot 3 ports 1 and 2.

Example 2:  Correlate device to the MAC address in the iDRAC.

We can list further information about a single port.
Choose a device to identify. In this example, lets consider em1.

# ip link show dev em1

We can now look in the iDRAC and find the device whose port has that MAC Address.
Go to System > Network Devices, and inspecting the ports of each, we find the MAC address on the Integrated NIC, Port 1.
 

Option 2:  Use ethtool to visually inspect the NIC

Using the ethtool command that we can force a NIC’s LEDs to blink to visually identify.

Example: 

# ethtool –identify em1

Before:

After:

The left LED blinks every second, and the right blinks rapidly.

 

Option 3:  Use systool and lspci.

We can run command systool and show devices of a class "net," for network.

# systool -c net

We can cross-reference that output with the output from lspci.

# lspci | grep -i eth

We can also use lspci and grep for the specific PCI enumeration.